Iyer johnson and andrew fyrberg



(No Model.)

I. JOHNSON & A. FYRBERG.

REVOLVER.

Patented May l0, 1887.

MVM/ADJ? N. PETERS. Pnnmimmgmplwr. wasnmgnon. D. c.

inrrnn STATES PATENT Ormea IVER JOHNSON AND ANDREV FYRBERG, OFVOROESTER, MASSACHUSETTS; SAID FYRBERG ASSIG'NOR TO SAID JOHNSON.

REVOLVER.

ECFECATION forming part of Letters Patent No. 362,631, dated May 10,1887.

Application filed December 27, 1886. Serial No. 222,596, (No model.)

To @ZZ whom z't may concern:

Be it known that we, IVER JOHNSON and ANDREW FYRBERG, both of Worcester,in the county of XVorcester and State of Massachlr setts, have inventedcertain new and useful Improvement-s in Fire-Arms; and we do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, forming aiopairt'of this specification, and in which- Figure l represents a sideView, partly in section, ofso much ot'a revolver as is necessary toillustrate our improvements thereon. Fig. 2 represents a part of therevolver illustrated in Fig. l, with the barrel unlocked and droppeddown from the frame, to better show the operation of one part ofourimprovements; and Figs. 3 to 6, inclusive, represent different viewsof our said improvements, hereinafter more fully 2o explained.

Our invention relates to breech-loading tire arms having a revolvingcartridge-cylinder and cartridge-extracting mechanism.

It relates more particularly to the extractordisk and its operation ofsaid cartridge-extracting mechanism, and to means for protecting theinterior of the fire-arm from dust or similar substance around thehammer thereof when at half-cock.

3o Said invention consists in improvements in the construction and meansof operating the extractor-disk and its finger to extract thecartridge-shells, with a view to simplifying the construction shown intheUnited States Patent No. 339,301, granted to Johnson, Torkelson, andFyrberg, for improvements in tire-arms, under date of April 6, 1886.

It also consists in forming a flange or hood projecting rearward fromthe breech, adapted 4o to fit over the top and side edges of the upperforward part of the hammer when at half-cock, so as to leave nointervening space opening between said hammer and the breech when it isin the aforesaid position, and thus, by forming a closejoint around saidfront side of the hammer, excluding all dust and similar particles fromentering at this point and impairing the action of the working parts, italso serving to lessen the liability to accidents by premature 5odischarge in carrying the iire-arni.

To enable others skilled in the art to which our invention appertains tomake and use the same, we will now proceed to describe it more indetail.

In the drawings, A represents the frame of the revolver, comprising thehandle A', the receiver A2, the breech or bridge A, and the fore-handA". The barrel B is provided with the usual top strap, B', extendingback over the cylinder C, for connection with the top mem- 6o ber, B2,of the breech, to which in practice it may be locked as ordinarily. Itis pivoted to the frame by means of the bolt D, so that it may be swungdown, as usual, when unlocked from the breech.

.The cylinder C is fitted to rotate upon the usual sleeve, c, and saidsleeve is providedl with the usual extractor, I), and spring c.

The part marked E represents our improved extractor-diskhaving the usuallong projec- 7o tion or linger, d, and small projection or shoulder e,theformer being adapted to bear upon theinnerend of theextractor-spindlef against the pressure of spring c, andthe latter tobear against a shoulder on the frame in extracting the emptycartridgeshells by the operation of dropping or swinging down the barrelB from the frame, as previously stated. The extractordisk E and itsringer, when in their normal state or at rest, occupy the position shownin Fig. 1, with said finger free from the pressure of theextractorspindle and its spring, with the front side of the lingerresting against the inner side of the cam part g of barrel B and theshoulder c `just in front of or in contact with the end It of theforeAhand.

The disk is arranged to yield to an outward pressure, so that it may beforced inward, as and for the purpose hereinafter described, byarrangingasq uare or rectangularshaped plate, 9o fi, over the pivotboltD, which fits in a slot, j, formed in the disk, said slot being ofsufficient length to admit of a lateral movementof the disk upon saidplate and both parts rotating upon the pivotbolt. Between plate t' andthe 95 bottom of slotj, next to the shoulder c, is in terposed a spiralor other spring, k, for producing a pressure ot' the plate against thepivot and thus forcing out the disk, so that said shoulder e will comeagainst the end h of roo the fore-hand when said disk is forced orturned round on its pivot (after the extracting operation) by theextractorspindle and spring, as hereinafter described.

The plate i, surrounding the pivot-bolt D, combined with the spring 7cand other parts, as pointed out in the claims, constitutes the main oressential feature -of improvement in the extractor mechanism.

The method of obtaining a bearing of the shoulder e against the shoulderor projection h of the fore-hand is also an .improvement over the methodshown in the patent hereinbefore cited, which necessitates the formingof a pocket under the part e of said fore-hand. The latter feature,however, is not new in itself, and We claim it only in combination withthe first-mentioned improvement and other adjacent parts.

The operation may be briefly summed up as follows: Assuming that thevarious parts of the revolver are in their normal positions, ready forextracting the cm pty cartridge-shells after tiring, and that the barrelhas been unlocked from the frame, as usual, by now swinging or droppingdown said barrel upon its pivot, the inner end of the extractor-spindlef is brought in contact with the end of the extractor-finger d of thedisk, and, being held rigid by the shoulder e bearing against theforehand, as previously described, acts as a cam to force said spindleand the Whole ex tractor back out of the sleeve in the cylinder, andthus extracting the empty cartridge-shells. 'As the barrel is continuedto be moved down, the bearing or cam part g thereof comes in contactwith the curved back e ofthe shoulder e and forces the extractor-disk intoward the cylinder, so that said shoulder e is carried beyond anddisengaged from its holding-shoulder on the fore-hand. The disk, beingreleased, is now (immediately upon its shoulder e passing by theshoulder h) sprung around by the ejectorspring from the position shownby full lines to that shown by dotted lines in Fig. 2, thereby allowingthe ejector to be sprung forward into its normal position in thecylinder. The reearm is then reloaded by inserting new cartridges in theusual way, when the barrel is finally swung up into position and lockedready for firing. In the latter operation of swinging up thebarrel thecam part g, coming in contact with the front side of theextractor-finger, rotates the disk so as to bring the shoulder c infront of the shoulder h,when said disk and its shoulder is sprung out byits spring into the position shown in Fig. l, preparatory to againforcing out the extractor when the'barrel is broken down, ashereinbefore described.

Our improvement for excluding the dust and similar substances fromentering around the usual space in front of the hammer F when athalf-cock consists in forming a flange or projection, Z, on the breechor bridge of the firearm,which extends back and down therefrom over andat each side of the hammer-opening, just sufficient to lap over the topand side edges of the upper front part of said hammer, where it isusually exposed and unprotected. The use of said ange l is not onlyefficient for the above purpose, but also to prevent the arm from beingprematurely discharged by the hammer becoming caught in the clothing orin other ways in carrying or handling said arm, said ange serving as aneffectual guard against that portion of the hammer catching and beingraised in any accidental manner, as will at once be seen. The length ofsaid flange would of course be varied, aswell as its shape, to conformto different -makes of fire-arms.

We are aware that it is not new, in a broad sense, to overlap the upperend of the hammer of a tire-arm when at half-cock by its breech, thesame being shown in the United States Patent No. 15,167, granted to F.Beals, dated June 24C, l856, for improvement in fire-arms; but in saidpatent the extreme upper end or terminal point of the hammer only iscovered, leaving an open space under said end in front of the hammer,where the dust may freely enter, therefore not eiecting the same resultas by the use of our invention. We, however, in view ofthe above patent,limit our claim to the construction substantially as shown anddescribed.

Having described our improvement-s, what we desire to secure by LettersPatent is- 1. In a breech-loading fire-arm, the combination of the mainpivot D, shoulder h on the front end of the fore-hand A4, cam part g ont-he base of barrel B, and the extractorspindle f, with theextractor-disk E, comprising a circular plate provided with a projectionor finger, d, adapted to bear upon the inner end of theextractor-spindle in discharging the empty cartridge-shells; alsoprovided with the shoulder e, adapted to bear against the shoulder h onthe fore-hand When the barrel is swung down, and with a central openingor slot, j, at about right angles to finger d, whose length is aboutone-half the diameter of the circular plate, and which is a little widerthan the diameter of pivot D, plate i, fitted in slot j laterally, andmade shorter than said slot, so as to leave a space at the end next toshoulder e, and spring 7c, arranged in said space between the end ofplate z' and the bottom of slot j, substantially as shown and specified.

2. In a breech-loading tire-arm having a rebounding hammer adapted toassume a halfcocked position after each discharge, the combination ofsaid hammer and means for operating the same with the breech of saidfirearm, having a ange, Z, projecting back and down therefrom over andat each side of the opening in the frame in which the hammer works, saidtiange overlapping the top and side edges of the upper front part ofsaid hammer wheny at half-cock, so as to completely close the usualtransverse opening or space between the outer line of the frame andfront of the hammer, substantially as and for the purpose specified.

IVER JOHNSON.

VVitnessese- ANDREW FYRBERG.

ALBERT A. BARKER, WALTER B, NoURsn.

IIO

